The unit works well. In the 100 degree weather we just had it made a kitchen, living room, and a hallway nice and cool. Wouldve given it 5 stars, but the tubing for the exhaust vent is really difficult to assemble into the fittings. Everything else took seconds to figure out. The exhaust tubing took about 45 min to finally get it, and it will didnt stay in if the unit was moved.